Frequency-offset impact on DQPSK direct detection is experimentally addressed with free-running sources. The heterodyned-measured frequency offset is related both with DQPSK BER performance and power penalty. Polarization-dependent delay impairment is isolated as well.
© 2005 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.4510) Fiber optics and optical communications : Optical communications
(060.5060) Fiber optics and optical communications : Phase modulation
L. Marazzi, P. Parolari, P. Boffi, R. Siano, M. Feroldi, and M. Martinelli, "Impact of Laser Frequency Offset on DQPSK Direct Detection," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper JThE69.
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